As a world wide exclusive, AeroXP has received information detailing several of the API improvements to Leopard, detailed below:

Complete 64-Bit support for Intel and PowerPC through all frameworks excluding QuickTime C, QuickDraw, Sound Manager, Code Fragment Manager, Language Analysis Manager and QuickTime Musical Instruments. These modules are deprecated and one should use the modern equivalents instead.

Leopard will feature resolution-independent user interface and there are several functions to get the current scaling factor and apply it to pixel measurements. It is a good idea to use vector controls and buttons (PDF will work fine) or to have multiple sized resources, similar to Mac OS X icon design, so you can scale to the nearest size for the required resolution.

Address Book adds support for sharing accounts, allowing an application to restrict content according to user.

Automator includes a new user interface and allows things such as action recording, workflow variables and embedding workflows in other applications.

Time Machine has an API that allows developers to exclude unimportant files from a backup set which improves backup performance and reduces space needed for a backup.

A new Calendar Store framework allows developers access to calendar, event and task information from iCal to use in their applications or to add new events or tasks.

Carbon, the set of APIs built upon Classic MacOS and used by most 3rd party high-profile Mac OS X applications, now allows Cocoa views to be embedded into the application. This could provide applications like Photoshop and Microsoft Office access to advanced functions previously only available to Cocoa applications.

A new control for creating matrices of views is available, NSGridView. This allows a grid to be created from any view in the system, including OpenGL or Web Views.

Core Animation allows layers to be used as backing stores for a view, windows to use explicit animations when resizing (can be three dimensional, akin to the Time Machine view). Any view can now be put into fullscreen mode and a CoreImage transition effect can be used. Using Core Animation you can create anything including GPU-accelerated Front Row-style user interfaces without having to write OpenGL code. A Core Animation layer can include OpenGL content, Core Image and Core Video filter effects and Quartz/Cocoa drawing content, like views and windows. (Comment: Expect to see Core Animation all over the new UI.)

Apache 2.0, Ruby on Rails and Subversion are included, and support for script-to-framework programming is available, allowing Python and Ruby scripting to access Mac OS X specific APIs.

The iChat framework allows a developer to add shared content to an active iChat session, for example a video, an image slideshow or even an online multiplayer game.

"Sharing accounts" are possible, with users being restricted via an access control list (ACL) to certain applications or files. Developers can integrate with this by restricting access to a specific piece of content by connecting it to a sharing account. Sharing accounts have no home folder.

An Image Kit is included, to allow a developer to easily create an application that can browse, view, crop, rotate and pick images, then apply Core Image filter effects through an interface. A slideshow interface is also open to developers, allowing any application to display a fullscreen slideshow of images.

Leopard also gives developers access to a "Latent Semantic Mapping" framework, which is the basis for spam protection in Mail. It allows you to analyze text and train the engine to restrict items with specific content (like spam e-mail for example).

Mail stationery is open to developers, allowing any web designer to create fantastic-looking Mail templates, with defined areas for custom user content.

A new framework is included for publishing and subscribing to RSS and Atom feeds, including complete RSS parsing and generation. Local feeds can be shared over Bonjour zero-configuration sharing and discovery.

Quicktime 7.1 is included, and the underlying QTKit framework is greatly improved. There is improved correction for nonsquare pixels, use of the clean aperture which is the "user-displayable region of video that does not contain transition artifacts caused by the encoding process", support for aperture mode dimensions, improved pitch and rate control for audio and a number of developer improvements, like QuickTime capture from sources like cameras and microphones, full screen recording or QuickTime stream recording. Live content from a capture can be broadcast as a stream over the network.

Click to expand...

Hmmm, I wonder if these fall under the "Top Secret" features that Apple is keeping close to its vest...

Hmmm, I wonder if these fall under the "Top Secret" features that Apple is keeping close to its vest...

Click to expand...

I wouldn't think so, some of them are expected (resolution independence and full 64bit support) some of them are unexpected but not beyond the realm of the educated guess from those in the know.

The Developer Preview of Leopard is unlikely to contain any of the really juicy stuff - the frameworks are there but we won't see anything beyond the sneak peak until at least MWSF next year. I'm expecting to see a revamped Finder (though I don't really have any problems with the current one), a fully unified and slicker UI and some really killer new features (nearly all the stuff from the WWDC viewing is available today from 3rd party apps).

ichat 4.0?
do you think it will be possible that, in ichat 4.0 i could show someone you desktop, so basically show them what I am doing on my screen? this would be really helpful when trying to help someone.
andreas

ichat 4.0?
do you think it will be possible that, in ichat 4.0 i could show someone you desktop, so basically show them what I am doing on my screen? this would be really helpful when trying to help someone.
andreas

Click to expand...

Yup - you can actually preview it on Apple's Leopard Preview site (I think...)

Is it just me? I'm kind of surprised this thread hasn't received more attention. The "new" features here seem very interesting compared to what was demoed at the keynote. Especially how much new stuff is implemented on a system-wide basis so that other apps can take advantage of it.

MacRumors attracts a broad audience
of both consumers and professionals interested in
the latest technologies and products. We also boast an active community focused on
purchasing decisions and technical aspects of the iPhone, iPod, iPad, and Mac platforms.